Welcome, Guest
Username: Password: Remember me
Forgot your password? Forgot your username? Create an account
Forum
Community Support
nanoAVR
Simulate surround sound from 2 channel pcm?
NOTE: This forum is community powered. Please be mindful that long time community members are here to help as part of a community effort. If you have a specific issue (e.g. hardware, failure), please use our tech support portal (Support menu - > Contact Us). Thanks a lot of your help in making a better community. :-)

TOPIC: Simulate surround sound from 2 channel pcm?

Simulate surround sound from 2 channel pcm? 3 years 5 months ago #21009

Hi, i'm contemplating the AVR HDA and have 1 concern. I have an Xbox 360 and over HDMI it can only output 2 channel pcm or 5.1 bit stream. So it occurred to me I could use the 8×8 plugin to simulate surround from those 2 change sources.

Would this be possible?
The administrator has disabled public write access.

Simulate surround sound from 2 channel pcm? 3 years 5 months ago #21029

  • john.reekie
  • john.reekie's Avatar
  • Offline
  • Platinum Boarder
  • Posts: 3263
  • Thank you received: 1403
  • Karma: 131
Hi, i think the answer to your question is "it depends." If you want to do something like Dolby Prologic decoding, you can't do that. If you want to just send content from the front left and right to the surround speakers, you can do that. For example, you could route the front left to the surround left at say, -6 dB, the same for the right, and that would give you a sort of surround effect. It's not "proper" surround sound by any means, but would give you some signal to the surrounds when playing music, but something like surround sound effects wouldn't work.

Hope that helps
I am not miniDSP support.

"You must ask the right questions." - Dr. Alfred Lanning's hologram.
-> Have you read the User Manual??
-> Have you drawn and posted a diagram?
-> Have you posted a screenshot?
-> Have you posted your config file?
The administrator has disabled public write access.
The following user(s) said Thank You: devteam, texaspledge

Simulate surround sound from 2 channel pcm? 3 years 5 months ago #21074

  • devteam
  • devteam's Avatar
  • Offline
  • Administrator
  • Posts: 8116
  • Thank you received: 952
  • Karma: 150
Very good answer from John already. You can't reproduce Prologic because it involves phase at crosspoints but you can do some level based routing though thanks to the matrix mixed.

DevtTeam
MiniDSP, building a DIY DSP community one board at a time.
The administrator has disabled public write access.
The following user(s) said Thank You: texaspledge

Simulate surround sound from 2 channel pcm? 3 years 5 months ago #21106

Much appreciated guys.
The administrator has disabled public write access.
Moderators: devteam
Forum
Community Support
nanoAVR
Simulate surround sound from 2 channel pcm?
Time to create page: 0.106 seconds